PULSAR S HPA Engine with TITAN II Bluetooth® - the world’s smallest & most advanced single solenoid HPA engine. The first HPA engine controlled by an ETU with optical sensors. Thanks to the newest flagship TITAN II Bluetooth® combined with HPA technology you get a ludicrous trigger response, unknown before in the airsoft world. With the user-friendly GCS app for smartphones you can manage your settings live, even straight from the field! Set the fire selector modes, trigger sensitivity, ROF or connect your smartwatch in order to know how many BBs are left in your magazine. You'll find all the electronics inside the gearbox (free space in the butt stock or the grip). For the first time ever, users of HPA replicas can experience a multitude of airsoft replica settings and configurations as well as an optical trigger sensor, which has been till now possible only for AEG users. With the newest sensor, you can set trigger sensitivity unattainable before - even 50 sensitivity points in the first millimeter of movement. Finally, GATE technology breaks into the world of HPA replicas. Take your replica into the future!